Safety-pin.



F. A. KINNEY.

SAFETY PIN.

APPLICATION men JULY 6.1916.

1,225,823.. Patented May15,i1917.

FREDERICK A. KINNEY, OF PHILADELPHIA, PENNSYLVANIA.

AFETY-PIN.

' Specification of Letters Patent.

EPat-ented May 15, 1917.

Application filed July 6, 1916. Serial No. 107,728.

To all whom it may concern.

Be it known that T, FREDERICK A. KIN- NEY, a citizen of the United States, residing at Philadelphia, in the county of Phila delphia and State of Pennsylvania, have invented certain new and useful Improvements in Safety-Pins, of which the following is a specification.

My invention consists of an improved safety pin. One of the objects of my invention is to provide a safety pin which will more securely pin together two or more pieces of material than it is possible to do with any of the, safety pins made prior to my invention.

Another object of my invention is to so construct a safety pin that it will resist a greater pulling action than has been possible prior to my invention and that said pulling action will be resisted without tearing or otherwise injuring the material to which the pin is secured.

A further object is to so make my improved pin that when it is secured to material, all the parts will be locked so that they will not become unfastened when ten sion is placed upon said material.

A still further object'is to so design my improved pin that it may be quickly and easily fastened and removed from said material, and can be manufactured at a relatively low cost.

These objects, and other advantageous ends which will be described hereinafter, I attain in the following manner, reference being had to the accompanying drawings in which- Figure 1 is a perspective view of my invention shown ready to be attached to a fabric or the like.

Fig. 2 is a side elevation of the pin shown in Fig. 1.

Fig. 3 is a side elevation of the pin shown in Fig. 2 in which the several parts are closed.

Fig. 4: is a top plan view of Fig. 2.

Fig. 5 is a sectional plan view taken on the line aa of Fig. 3.

Figs. 6 and 7 are respectively side elevation and top plan view of a slightly modified form of my invention.

Fig. 8 is a perspective view of the form of my invention illustrated in Figs. 1 to 5 inclusive as it appears when attached to a fabric or the like.

Fig. 9 is an enlarged transverse section taken on the line 6-?) of Fig. 8 showing a hump formed in the fabric.

Figs. 10 and 11 are respectively side elevation and top plan view of another form of my invention, and

Fig. 12 is a side elevation showing a modified form of main bar which I may in some instances employ.

Referring to the drawings, a head 1 preferably made of smooth sheet metal is formed as clearly illustrated to provide 'two oppositely disposed sockets 2 and 3. Secured within the socket 2, by solder or other suitable means, is the folded end 1 of two longitudinally extending strands 5 and 6 of a wire 7 These strands are preferably secured together, in the forms of my invention illustrated in Figs. 1 to 12 inclusive, by solder 8 (see Fig. 9) and constitute the main bar of my improved pin.

In the forms of my invention illustrated in Figs. 1 to 5, and 8 and 9, the strand 5 is shaped at a position remote from the head 1 to provide a spiral coil 9 and is extended longitudinally to form a pin 10 which is off-set to provide a shoulder 11.

The pin 10 is preferably bent to extend normally at a slant to the length of said main bar, said slant being shown by the pin extending under the main bars as clearly illustrated in Fig. 4.

The strand 6 is also shaped to form a spiral coil 12 from where it extends to form an auxiliary bar 13. The free ends 14 and 15 respectively, of the pin 10 and auxiliary bar 13, are designed to fit withinthe recess 16 provided by the socket 3 when the pin is in use, and said end 15 as shown in Figs. 1 to 5, is provided with a smooth enlarged head 17.

In attaching the form of my improved safety pin which is illustrated in Figs. 1 to 5 and 8 and 9, to a fabric or the like, the pin 10 is first stuck downwardly, and then upwardly through the fabric. The end 14 is then forced into the recess 16 in the head 1. The end 15 of the auxiliary bar 13 is then forced into said recess 16. My safety pin attached in this manner will form a hump 18 in the material to which it is attached, said hump extending from the line contacts of the main bar and the auxiliary bar 13 over the slightly raised pin 10.

The said slightly raised position of the pin 10 in its attached position is attained by having the pin normally extending at said slant as above described, since the central portion of the pin 10 will bow outwardly' beyond the plane of the main and auxiliary bars when the end 14 of the pin 10 is forced into the recess 16. This bowed position of the pin 10 is clearly shown in Fig. 5.

The shoulder 11 acts as a stop which abuts the pierced portion of the fabric to which the safety pin is attached and also acts to position the main body portion of the pin 10 substantially midway between the main bar and auxiliary bar (see Figs. 3 and 8).

In the form of my invention just described, I preferably locate the coils 9 and 10 substantially in line with the main bar, and with the coil 9 in front of the coil 12.

As clearly shown in Fig. 4, the auxiliary bar 13 normally extends at a slight angle in front of and out of line with the main barin addition to having the normally downwardly inclined position as shown in Fig. 2. The idea of this particular arrangement is to provide resiliency in said auxiliary bar 13 in addition to the resiliency provided by the coil 12, so that the end 15 will positively remain in the recess 16 of the head 1 after once it is placed therein, but when manually released, said resiliency will also act to quickly move said auxiliary bar, so that the pin may afterward be quickly released and withdrawn from the material.

It will be understood that the coil 9 also provides a spring in addition to the bending of the pin 10 into the position shown in Fig. 4, so that the'pin will also positively remain Within the recess 16.

The smooth enlarged head 17 of the auxiliary bar 13 serves two purposes, first it prevents the bar 3 from piercing the material,

and secondly, it aids as a lock for the pointed end 14 of the pin 10 (see Fig. 5).

In the form of my invention shown in Figs. 6 and 7 the construction is substantially identical to that shown in Figs. 1 to 5 inclusive with the exception that the strands 5' and 6 instead of being arranged in vertical alinement with each other, as shown for example in Figs. 2 and 3, they are arbeing extended to form an auxiliary bar 13 having its free end provided with a smooth enlarged head similar to the head 17 of auxiliary bar 13.

In the form of my invention shown in Figs. 10 and 11, I provide a head 19 which is provided with sockets 20 and 21, the latter having secured therein, by solder or other suitable means, the folded end 22 of two longitudinally extending strands 23 and 24 of a wire 25. These strands are preferably secured together for the greater portion of their length by solder similar to the solder 8 in the above described figures, and constitute the main bar of the safety pin.

The strand 24 is extended to form a looped end 26 and an auxiliary bar 27, which is substantially similar in function to the auxiliary bar 13 as above described. However, the auxiliary bar 27 in this form of my invention is secured within the socket 20 and is not movable therefrom during the .attaclr ment or removal of the safety pin from the material. The strand 24 is shaped to form a spiral coil 28 within the looped end 26, and a pin 29 extends from said spiral coil 28.

The pin 29 is also provided with an off-set portion providing a shoulder 30 which acts in the same capacity as the shoulder 11 above described. It will be noted that as illustrated the main bar of Fig. 10 is inverted when compared, for example, to Fig. 2, and that the pin 29 extends upwardly.

By holding the pin shown in Fig. 10 in this inverted position, it may be readily ex tended through a piece of cloth or the like, and the end of the pin afterward attached within the socket 20, said socket having a recess 31 of similar nature to the recess 16.

In Fig. 12 of the drawing, I have illustrated a form of my invention which is substantially identical with the form illustrated in Figs. 1 to 9 inclusive, with the exception that instead of having the strands 5 and 6 extend parallel and substantially straight, these strands which are respectively referred to by the numerals 32 and 33 are twisted for the greater portion of their length and provide a strong main bar 34 which is secured within a socket35 of a head 36.

The strand 33 is extended to form a spiral coil 37 and an auxiliary bar 38 which is designed toengage a socket 39 and the strand 32, is extended to form a spiral coil 40 and an intermediate pin 41 which has its pointed end designed to fit within said socket 39.

It will be understood that my improved safety pin, When attached to material, provides a three-line contact, one line contact being produced on one surface of the material and provided by the pin, as for example, the pin 10 or 29, while two line contacts are provided on the opposite outer surface of the material by the main bar and auxiliary bar, said two-line contacts being arranged at either side of the one line contact. Furthermore, the particular disposition of the pin between the main and auxiliary bars as hereinbefore described, provides a hump in the fabric, which produces tension and causes the several parts to be firmly pressed to the material, so that each part is in constant contact with the fabric and assists in resisting tension placed upon the fabric, thereby preventing tearing of the fabric as is common with safety pins which have a single pin for piercing the fabric, sa d pin being allowed to freely turn from slde to side as in the safety pin in common use.

Furthermore, the provision of the shoulder 11 forms a backing and additional pressing means for the humped portlon of the fabric, thereby assisting in properly securing the safety pin to the fabric.

The extent of the hump produced 1n the fabric may be varied by bending or bowing the pin to different extents.

It will be further noted that in each of the forms of my invention, the main bar and the auxiliary bar, together with the head, forms an elongated loop, and it is the provision of this elongated loop with the elongated pin extending between the sides or bars of this loop, that I primarily cla m as my invention, irrespective of the partlcular formation of the other features above enumerated, however, said features greatly add to the. efficiency of my invention and provide a beneficial asset.

lVhile I have described the strands of wire which constitute the main bar as being soldered together, it will be understood that they may be brazed together, spot welded, or otherwise joined. I

While I have described my invention as taking a particular form, it will be understood that the various parts of my inventlon may be changed without departing from the spirit thereof, and hence I do not lnnlt myself to the precise construction set forth, but consider that I am at liberty to make such changes and alterations as fairly come within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A safety pin including a recessed head, and two longitudinally extending bars spaced apart, said bars and head forming an elongated loop, and an elongated pm extending longitudinally between the elongated sides of the loop and having its free end designed to catch within the recess of the head, one of said bars having a free end designed to catch within said recess, said latter bar having a spring portion designed to move its free end away from said head after having been manually released therefrom, substantially as described.

2. A safety pin including a recessed head, and two longitudinally extending bars spaced apart, said bars and head forming an elongated loop, and an elongated pin extending longitudinally between the elongated sides of the loop and having its free end designed to catch within the recess of the head, one of said bars forming an auxiliary bar and having a free end designed to catch within said recess, said free end of the auxiliary bar having a smooth enlarged head, substantially as described.

3. A safety pin including a main bar having a recessed head secured at one end and an auxiliary bar springing from its opposite end, said auxiliary bar having a blunt free end designed to engage the recess in the head, and a. pin springing from said latter end of the main bar, said pin having a sharp free end adapted to engage the recess with the blunt end of the auxiliary bar, said pin extending longitudinally between the main and auxiliary bars, substantially as described.

4. A safety pin including a main bar comprising two strands of wire secured together and having a recessed head at one end, one of said strands, at the end opposite said head, being turned to form a spring and then extended to form an auxiliary bar, said bar having a blunt end designed to engage in the recess of said head, the other of said strands, at the end opposite the head, being turned to form a spring and then extended between said main and auxiliary bars to form a pin, said pin having a sharp free end adapted to engage the recess with the blunt end of the auxiliary bar, substantially as described.

5. A safety pin including a recessed head, and two longitudinally extending bars lead ing from said head and being spaced apart, said bars and head forming an elongated loop, and an elongated pin extending from one of said bars and including a coil providing a spring at a position remote from said head and having its free end designed to fit within said .recess, said pin being offset between said coil and the free end of the pin to form a shoulder, substantially as described.

6. A safety pin including a recessed head, and two longitudinally extending bars leading from said head and being spaced apart, said bars and head forming an elongated loop, and an elongated pin extending from one of said bars and including a coil providing a spring at a position remote from said head, said pin having its free end designed to fit within said recess, said pin be ing offset to provide a shoulder intermediate said latter end and the head, said pin being normally bowed to provide a hump in the material to which the safety pin is attached after the free end of the pin has been forced within said recess, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FREDERICK A. KINNEY.

Witnesses:

C. H. WILoOX, E. O. VVILLING.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

